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iTrader: (19)

Hope this helps


Clunk, Bump or Squawk when Vehicle Comes to Complete Stop or Accelerating from Complete Stop or Accelerating from Complete Stop (Replace Rear Drive Shaft Nickel-Plated Slip Yoke) #01-04-17-004B - (Jan 5, 2005)Clunk, Bump or Squawk when Vehicle Comes to Complete Stop or Accelerating from Complete Stop (Replace Rear Drive Shaft Nickel-Plated Slip Yoke)
1999-2000 Cadillac Escalade (Old Style)

2002-2004 Cadillac Escalade, Escalade EXT

2003-2004 Cadillac Escalade ESV

1996-1999 Chevrolet 1500 Series Extended Cab Short Box Pickup (Old Style)

1996-1999 Chevrolet 1500 Series Regular Cab Pickup and Utility Models (Old Style)

1999-2002 Chevrolet Silverado Extended Cab Short Box (New Style)

1999-2004 Chevrolet Silverado 1500 Series Regular Cab (New Style)

2000-2004 Chevrolet 1500 Series Avalanche, Suburban and Tahoe

2001-2004 Chevrolet Silverado 2500/3500 Series Regular Cab with Long Bed or Extended Cab (New Style)

2001-2004 Chevrolet Silverado 2500 Series Crew Cab, Short Box (New Style)

1996-1999 GMC 1500 Series Extended Cab Short Box Pickup (Old Style)

1996-1999 GMC 1500 Series Regular Cab Pickup and Utility Models (Old Style)

1999-2002 GMC Sierra Extended Cab Short Box (New Style)

1999-2004 GMC Sierra 1500 Series Regular Cab (New Style)

2000-2004 GMC 1500 Series Yukon, Yukon XL

2001-2004 GMC Sierra 2500/3500 Series Regular Cab with Long Bed or Extended Cab (New Style)

2001-2004 GMC Sierra 2500 Series Crew Cab, Short Box (New Style)

2003-2005 HUMMER H2

with Four Wheel Drive (4WD) or All Wheel Drive (AWD) and One-Piece Propeller Shaft ONLY

This bulletin is being revised to add Cadillac Escalade (Old Style) and HUMMER H2 to the Models section. Please discard Corporate Bulletin Number 01-04-17-004A (Section 04 -- Driveline/Axle).

Condition
Some customers may comment on a clunk, bump or squawk noise when the vehicle comes to a stop or when accelerating from a complete stop.

Cause
A slip/stick condition between the transfer case output shaft and the driveshaft slip yoke may cause this condition.


Part Number
Description
Usage

12477702
Yoke Asm., Prop Shf Slip (with u-joint) , Nickel Plated
4WD/AWD 1500 Series Ext Cab Short Box Pickups (New Style and Old Style)

12477704
Yoke Asm., Prop Shf Slip (with u-joint) , Nickel Plated
4WD/AWD 2500 Series Ext Cab Short Box Pickups (New Style)

12479383
Yoke Asm., Prop Shf Slip (without u-joint) , Nickel Plated

Must Be Ordered With U-Joint Kit P/N 12479126
4WD/AWD 1500 Series Silverado, Sierra Regular Cab Pickups (New Style)

4WD/AWD 1500 Series Suburban, Avalanche, Yukon XL, Escalade EXT, Escalade ESV with AWD (New Style)

K1500 Series Regular Cab Pickup, Tahoe, Suburban, Escalade (Old Style)

12479384
Yoke Asm., Prop Shf Slip, (without u-joint) , Nickel Plated

Must Be Ordered With U-Joint Kit P/N 12479126
4WD/AWD 1500 Series Tahoe, Yukon, Escalade w/ 4WD or AWD (New Style)

12479385
Yoke Asm., Prop Shf Slip (without u-joint) , Nickel Plated

Must Be Ordered With U-Joint Kit P/N 12471510
4WD/AWD 2500HD/3500 Series Silverado and Sierra Regular Cab, Long Bed Pickups with 6.0L (RPO LQ4) Engine (New Style)

89058876
Yoke Asm., Prop Shf Slip (with u-joint) , Nickel Plated
4WD/AWD 2500HD Series Silverado and Sierra Crew Cab, Short Bed Pickups with 5-Speed Allison Transmission (RPO M74) (New Style)

4WD 2500HD/3500 Series Silverado and Sierra Extended Cab Long Bed Pickups with 5-Speed Allison Transmission (RPO M74) (New Style)

4WD 2500HD/3500 Series Silverado and Sierra Regular Cab, Long Bed Pickups with 5-Speed Allison Transmission (RPO M74 build date before 2/2004) (New Style)

4WD/AWD 2500HD Series Silverado and Sierra Extended Cab, Short Bed Pickups with 5-Speed Allison Transmission (RPO M74 build date before 2/2004) (New Style)

89058878
Yoke Asm., Prop Shf Slip (with u-joint) , Nickel Plated
4WD/AWD 2500HD/3500 Series Silverado and Sierra Extended Cab Pickups with 6.0L (RPO LQ4) Engine (New Style)

4WD 2500HD Series Silverado and Sierra Crew Cab, Short Bed Pickups with 6.0L (RPO LQ4) Engine (New Style)

89058880
Yoke Asm., Prop Shf Slip (with u-joint) , Nickel Plated
4WD/AWD 2500HD/3500 Series Silverado and Sierra Regular Cab, Long Bed Pickups with 5-Speed Allison Transmission (RPO M74 build date after 2/2004) or 6-Speed Manual Transmission (RPO ML6) (New Style)

4WD 2500HD Series Silverado and Sierra Extended Cab, Short Bed Pickups with 5-Speed Allison Transmission (RPO M74 build date after 2/2004) or 6-Speed Manual Transmission (RPO ML6) (New Style)

12479126
U Joint Kit
4WD/AWD 1500 Series Silverado, Sierra Regular Cab Pickups (New Style)

4WD 1500 Series Suburban, Avalanche, Yukon XL) (Escalade EXT, Escalade ESV with AWD (New Style)

4WD 1500 Regular Cab Pickup, Tahoe, Suburban, Escalade (Old Style)

Tahoe, Yukon, Escalade w/ 4WD or AWD (New Style)

12471510
U Joint Kit
4WD/AWD 2500HD/3500 Series Silverado and Sierra Regular Cab, Long Bed Pickups with 6.0L (RPO LQ4) Engine (New Style)

88964470
Yoke Asm., Prop Sft Slip (without U joint) Nickel Plated

Must be ordered with U joint kit P/N 88964507
HUMMER H2

88964507
U-Joint
HUMMER H2

900Z1

Took Driveshaft out today sanded it, put grease on it and installed.
No more clunk. Much cheaper than a $300.00 Nickle yoke.

KeukaZ71

i think i've heard that the noise will probably come back with in a month or so

Zick

iTrader: (18)

Yeah I heard a lot of guys say it comes back after a while after justing greasing.

woody62

I have 2005 GMC 2500HD 4x4 and my truck is making the clunking sound when you takeoff. I know its the slip yoke that gets dry. I had it pulled out and grease but it only lasted 3 months and the sound was back. Up here in canada the slip yoke is about $650. I was wondering if anybody has modified the slip yoke and installed a grease niple so that you can grease it yourself once a month. If this works you would save lot of money. what do you think? Woody

budhayes3

iTrader: (19)

I don't think that installing a grease fitting into the yoke would be a good idea...aside from compromising the integrity of the yoke, that will introduce an area for trans fluid to leak out.

I replaced my yoke when I swapped my trans last summer and it cured the clunk that my truck has had pretty much since it was new. I payed less than $200 for the part with my dealer discount

MikeGyver

iTrader: (5)

What good does it do anybody, you or us, to tell us what your dealer discount is?